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NEs cannot be sync because of external program occuping SNMP trap port

Publication Date:  2012-07-25 Views:  94 Downloads:  0

Issue Description

No alarms can be reported to the N2000 for all devices.
N2000 V200R012C05SPC030

Alarm Information


Handling Process

1. check configuration of NE
      snmp community is consistent with N2000.
      snmp-trap agent is configured correctly on port 162 to send traps to IP of server
2. check configuration of BMS
      xFTP watcher is configured correctly.
3. check BMS trap receiver, it is not running(check attachment).
4. check running process on server and searching for port 162
    c:\netstat -ano | findstr "162" netstat -ano | findstr "162" 
we found 1 application snmptrap.exe which is occuping port 162
5. After killing that application from Task manager, problem solved and Trap manager can start normally.

Root Cause

Some external software on the server was running and occuping port 162, so Trap receiver of the server cannot start.